Wide range of applications: Perfect for electrical connections on household and commercial appliances, automotive and marine applications. High quality material: stainless steel with anti-rust galvanized surface for long life, assortment of washers for home, automotive and business. Easy installation: The washer series is easy to install and gives your project a clean look. It is the most common type of stainless steel. Package includes: Contains 360 pieces/8 sizes of the most common stainless steel washers. (50 pcs M2, 50 pcs M2.5, 50 pcs M3, 50 pcs M4, 50 pcs M5, 50 pcs M6, 40 pcs M8, 20 pcs M10) Transparent box organizer: Muscccm not only provides the best washers but also the best storage system for them. Your pucks will not stack without burning you. Premium quality These black washers are made of durable high quality nylon, durable, corrosion resistant and well insulated. Versatile use, at home or at work. Perfect for electrical connection to household and commercial appliances, automotive and marine applications. Well classified store: A total of 500 pieces in 8 different sizes Flat washers are pre-classified for easy identification and to avoid loss. The sorting box not only helps to sort the washers well, but also makes transport and storage easier. M2.5 (50 pieces); M3 (50 pieces); M4 (50 pieces); M5 (50 pieces); M6 (50 pieces); M8 (40 pieces); M10 (20 pieces);